html, body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
}

#app_container {
  margin: 0;
  padding: 0;
  height: 100vh;
  background-color: #1F2327;
  color: #fff;

  #dv-full-screen-container {
    // 全屏容器可在此处设置背景图片
    background-image: url('@/assets/img/bg.png');
    background-size: 100% 100%;
    box-shadow: 0 0 3px blue;
    display: flex;
    flex-direction: column;
  }
}

.whl-row, .whl-col {
  width: 100%;
  height: 100%;
  display: flex;
  flex: 1;
}

.whl-row {
  flex-direction: row;
  justify-content: space-between;
}

.whl-col {
  flex-direction: column;
  align-items: center;
}